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Rubric-protocol

Rubric-protocol is an x402-native service at https://rubric-protocol.com, indexed from the x402 Bazaar (Coinbase's public discovery directory). It charges callers itself in USDC on Base and is paid directly at its own wallet; Monex Protocol passes your request and payment headers through untouched. 12 endpoints listed.

Base

Offers

OfferEndpointPrice
Agent Record Rubric Assert
Unforgeable operating history for any AI agent attesting through Rubric Protocol: record count, first-seen date, continuity days, and recent activity, computed from HCS-anchored attestations that cannot be backdated.
/m/bz-rubric-protocol-com/v1/x402/agent-record/rubric-assert0.005 USDC
X402 Attested Screening
Attested sanctions and export-control screening: OFAC SDN and Consolidated (primary and alternate spellings), UN Security Council, UK OFSI, EU and BIS Denied Persons. Fuzzy token matching (screen-matc
/m/bz-rubric-protocol-com/v1/x402/attested-screening0.01 USDC
X402 Attested Verification
Attested verification-event custody: seal the fact that an identity/liveness/KYC check ran, its method, provider, and result — without the subject's identity ever reaching Rubric. Caller submits an op
/m/bz-rubric-protocol-com/v1/x402/attested-verification0.005 USDC
X402 Decision Review
Attested policy evaluation: submit a proposed agent action, its context, and the policy it must satisfy. Returns a verdict, reasoning and the clauses applied, binding hashes of all three inputs into a
/m/bz-rubric-protocol-com/v1/x402/decision-review0.1 USDC
Hedera Facts Exchange Rate
Attested Hedera network facts: HBAR exchange rate, gas fees, supply, node roster, throughput, topic state. Each response carries the ML-DSA-65 attestation ID of the served snapshot — tamper-evident re
/m/bz-rubric-protocol-com/v1/x402/hedera-facts/exchange-rate0.001 USDC
Hedera Facts Gas Fees
Attested Hedera network facts: HBAR exchange rate, gas fees, supply, node roster, throughput, topic state. Each response carries the ML-DSA-65 attestation ID of the served snapshot — tamper-evident re
/m/bz-rubric-protocol-com/v1/x402/hedera-facts/gas-fees0.001 USDC
Hedera Facts Nodes
Attested Hedera network facts: HBAR exchange rate, gas fees, supply, node roster, throughput, topic state. Each response carries the ML-DSA-65 attestation ID of the served snapshot — tamper-evident re
/m/bz-rubric-protocol-com/v1/x402/hedera-facts/nodes0.001 USDC
Hedera Facts Supply
Attested Hedera network facts: HBAR exchange rate, gas fees, supply, node roster, throughput, topic state. Each response carries the ML-DSA-65 attestation ID of the served snapshot — tamper-evident re
/m/bz-rubric-protocol-com/v1/x402/hedera-facts/supply0.001 USDC
Hedera Facts Throughput
Attested Hedera network facts: HBAR exchange rate, gas fees, supply, node roster, throughput, topic state. Each response carries the ML-DSA-65 attestation ID of the served snapshot — tamper-evident re
/m/bz-rubric-protocol-com/v1/x402/hedera-facts/throughput0.001 USDC
Hedera Facts Topic State
Attested Hedera network facts: HBAR exchange rate, gas fees, supply, node roster, throughput, topic state. Each response carries the ML-DSA-65 attestation ID of the served snapshot — tamper-evident re
/m/bz-rubric-protocol-com/v1/x402/hedera-facts/topic-state0.001 USDC
X402 Regwatch Feed
Structured feed of regulatory changes affecting AI systems: jurisdiction, instrument, change type, effective dates, comment deadlines. Curated by the team behind The Attestation Brief; every item attested on ingest.
/m/bz-rubric-protocol-com/v1/x402/regwatch-feed0.05 USDC
Wallet Record :Address
Attested x402 payment history for any buyer wallet: settlement count, first-seen, last-seen, total spent, services used, distinct sellers observed - computed from an append-only settlement ledger and
/m/bz-rubric-protocol-com/v1/x402/wallet-record/:address0.005 USDC

Machine-readable: openapi.json with x-payment-info offers.

Try it live

Run the full MPP flow from your browser: catch the 402, sign the payment with your wallet, and watch it settle on-chain.

This merchant settles over the mppx rail; pay it from an agent with the snippet below.

Pay with an agent

Any MPP or x402-compatible client works. With mppx, payment is automatic:

import { Mppx, evm } from 'mppx/client'
import { privateKeyToAccount } from 'viem/accounts'

const mppx = Mppx.create({
  methods: [evm({
    account: privateKeyToAccount(process.env.KEY),
    currencies: [evm.assets.base.USDC],
  })],
})

const res = await mppx.fetch('https://api.meshgateway.co/m/bz-rubric-protocol-com/v1/x402/agent-record/rubric-assert')
// 402 challenge signed and settled automatically; response includes Payment-Receipt

Or inspect the challenge yourself:

curl -i https://api.meshgateway.co/m/bz-rubric-protocol-com/v1/x402/agent-record/rubric-assert
# HTTP/1.1 402 Payment Required
# WWW-Authenticate: Payment id="…", method="evm", intent="charge", …